The conversion features Corvus’ AT6500 48 volt lithium polymer battery packs. Corvus’ lithium polymer batteries last up to 10 times longer and have up to 10 times more power and energy storage than lead acid batteries.

Completed on 6 March, the converted RT Adriaan, now renamed E-KOTUG RT Adriaan, has rejoined the KOTUG fleet. The tugboat is located in Port of Rotterdam, one of the largest ports in the world, where it is fully operational and is optimizing its hybrid modes.

Seattle-based Foss Maritime introduced the world’s first hybrid tug, the Carolyn Dorothy in January 2009, proving that a hybrid tug can deliver full power and operational capabilities while significantly reducing fuel and emissions and saving on maintenance costs. (Earlier post.) In 2011, Foss incorporated Corvus’ lithium polymer batteries into the Campbell Foss, introducing the next generation in energy and power storage solutions into the Tugboat industry. (Earlier post.)